Create a fully branded AI chat app powered by Claude, OpenAI, or Grok. Train it with custom instructions, pick from 6 themes, and publish to the App Store and Google Play. Your AI, your brand, your app.

An AI app builder lets you create mobile applications with built-in AI chat powered by leading language models. Swiftspeed is the most powerful AI mobile app builder on the market, letting you embed a fully customizable AI assistant directly into your native app.
Connect your own API key from Anthropic (Claude), OpenAI (GPT), or xAI (Grok), train the AI with custom system instructions, brand it with your own name and avatar, and publish to both app stores. Your users get real-time streaming responses, markdown rendering, code highlighting, and a beautiful chat experience.

No machine learning expertise. No backend infrastructure. The Swiftspeed AI app builder handles the entire process from API connection to app store submission.
Add your API key from Anthropic, OpenAI, or xAI. The AI app builder validates the key and fetches available models automatically.
Write system instructions to define your AI's behavior. Set a custom name, avatar, welcome message, and suggested prompts for your users.
Choose from 6 chat themes (Aurora, Daylight, Midnight, Sunset, Forest, Minimal) and 3 layouts (Classic, Immersive, Sidebar). Override any color.
Build your native app and publish to Google Play and the App Store. Your AI assistant is embedded directly in the app, ready for your users.
Connect your preferred AI provider and model. Switch between providers at any time. Your API key, your choice.
Claude models known for nuanced reasoning, safety, and long context. Excellent for detailed analysis, creative writing, and complex problem solving.
GPT models with the widest recognition. Fast, capable, and supports image generation through DALL-E. The most popular choice for general-purpose AI apps.
Grok models built for real-time knowledge and conversational wit. Great for current events, casual conversations, and creative brainstorming.
The Swiftspeed AI app builder comes packed with features that make your AI assistant look and feel like a premium product.
Write custom system instructions to shape how your AI behaves. Make it a customer support agent, a fitness coach, a language tutor, or a coding assistant. The AI follows your rules and speaks in your brand's voice.
Responses stream in token by token, just like ChatGPT. Users see the AI typing in real time with smooth animations and an abort button.
AI responses render with full markdown support: bold, italic, lists, blockquotes, code blocks with syntax highlighting, and a copy button.
Aurora, Daylight, Midnight, Sunset, Forest, and Minimal. Dark and light modes with full custom color overrides to match your brand.
Give your AI a custom name, avatar, and personality. Set a welcome message and suggested prompts. Your users interact with your brand, not a generic chatbot.
DALL-E integration for creating images directly in chat.
Multiple conversations with auto-titling and search.
Set how many messages are sent as AI context.
Starter prompts shown on empty conversations.
Optionally show which AI model is responding.
Users can stop AI responses mid-stream.
Override every theme color to match your brand.
Set max messages per conversation to control API costs.
From customer support bots to creative writing assistants, the AI app builder gives you full control over how your AI looks and behaves.



The custom system instructions let you train your AI for virtually any role. Here are some of the most popular use cases.
Train your AI with your product documentation, FAQs, and return policies. Customers get instant, accurate answers 24/7 directly inside your mobile app.
Build a code helper that generates, explains, and debugs code. Full markdown rendering with syntax-highlighted code blocks and a one-tap copy button.
Create a study companion that explains concepts, solves problems step by step, and adapts to the student's learning level. Perfect for schools and online courses.
An AI trainer that creates workout plans, answers nutrition questions, and motivates users. Set the personality to be encouraging, data-driven, or tough-love.
Help users write stories, blog posts, social media captions, and marketing copy. The AI can adopt different tones, styles, and formats based on your instructions.
Build an AI consultant that answers questions about strategy, marketing, finance, and operations. Train it with industry-specific knowledge and best practices.

You connect your own API key. No middleman markup, no per-message fees from Swiftspeed. Pay only what the AI provider charges.
API keys never touch the mobile app. All AI requests proxy through the Swiftspeed backend, keeping credentials safe and preventing client-side key exposure.
Start with OpenAI, switch to Claude, try Grok. Changing providers takes one click. Your chat history and settings stay intact.
Not a web wrapper. The AI chat is embedded in a real native app compiled with Capacitor. Publish to both the App Store and Google Play.
6 themes, 3 layouts, custom colors, branding, system instructions, conversation limits, and more. Every aspect of the AI experience is configurable.
Create a fully branded AI chat app with Swiftspeed. Connect your preferred AI provider, customize the experience, and publish to the App Store and Google Play.